<?php

class Qs_Doc
{
    const ANALYTICS_TYPE_GOOGLE_ANALYTICS   = 'googleAnalytics';
    const ANALYTICS_TYPE_GOOGLE_TAG_MANAGER = 'googleTagManager';

    const POPUP = 'popup';

    const ITEM_GROUP_TOP    = 'TOP_ITEMS';
    const ITEM_GROUP_MAIN   = 'ITEMS';
    const ITEM_GROUP_RIGHT  = 'RIGHT_ITEMS';
    const ITEM_GROUP_BOTTOM = 'BOTTOM_ITEMS';

    const MESSAGE_BOX_MESSAGE   = 'message';
    const MESSAGE_BOX_ERROR     = 'error';
    const MESSAGE_BOX_ATTENTION = 'attention';

    protected $_analyticsType;

    /** @var array default null */
    protected $_templatePath;
    protected $_scriptStart = '/* <![CDATA[ */';
    protected $_scriptEnd = '/* ]]> */';
    protected $_layoutTemplate;
    protected $_smarty;
    protected $_smartyPluginPaths = [
        'lib/Smarty/Smarty/plugins',
        'lib/Smarty/app_plugins',
    ];
    protected $_content = [
        'htmlAttribs'  => [
            'xmlns' => 'http://www.w3.org/1999/xhtml',
            'class' => 'no-js',
            'lang'  => 'en-us',
        ],
        'head'         => [
            'keywords'       => '',
            'description'    => '',
            'meta'           => [],
            'base'           => '',
            'stylesheet'     => [],
            'script'         => [],
            'inlineScript'   => [],
            'readyFunctions' => [],
            'initFunctions'  => [],
        ],
        'bodyAttribs'  => ['onload' => 'bodyOnLoad()'],
        'bodyTemplate' => null,
        'menu'         => null,
        'ctrlMenu'     => null,
        'ITEMS'        => [],
    ];
    protected $_widgets = [];
    protected $_titleFormat = '[{title}][{separator}Page {pageNumber}][{titleSuffix}]';
    protected $_titleSeparator = ' :: ';
    protected $_titleParts = [];
    protected $_pageNumber;
    protected $_siteName;
    protected $_titleSuffix;
    protected $_resourcesIgnoredAttribs = [
        'skipPacking', // якщо стилю чи скрипту в атрибутах передати 'skipPacking' => true, то Qs_Packer такі ресурси мерджити не буде
    ];
    protected $_defaultGroupName = 'ITEMS';
    protected $_groupName;
    protected $_smartyPlugins = [
        'block' => [],
    ];
    protected $_templateRootPath;
    protected $_outFilters = [];
    protected $_templateDefines = [
        'BASE_URL', 'BASE_URL_LANGUAGE', 'CURRENT_PAGE', 'CURRENT_PAGE_FINAL', 'PARENT_PAGE', 'PARENT_PAGE_FINAL',
        'BASE_PATH', 'CURRENT_LANGUAGE', 'SITE_LIVE', 'DEFAULT_LANGUAGE', 'NOINDEX_BEGIN', 'NOINDEX_END',
        'SITE_REVISION',
    ];
    protected $_scriptDefines = [
        'BASE_URL', 'BASE_URL_LANGUAGE', 'CURRENT_PAGE', 'CURRENT_PAGE_FINAL', 'SITE_LIVE', 'PARENT_PAGE',
        'PARENT_PAGE_FINAL', 'CURRENT_LANGUAGE', 'DEFAULT_LANGUAGE', 'DEBUG', 'SITE_REVISION', 'OPTIMIZE_RESOURCES',
        'USE_PACKED_RESOURCES', 'IS_MOBILE',
    ];
    protected $_view;
    protected $_authClassName;
    protected $_authAdapterClassName;
    /**
     * @var Qs_Auth
     */
    protected $_auth;
    /**
     * @var Qs_Auth_Adapter_DbTable
     */
    protected $_authAdapter;
    protected $_hasAuthentication = false;
    protected $_options = [];
    protected $_optimized = false;
    protected $_hasAnalyticsScripts = false;

    /**
     * Module specific Placeholders e.g.: [
     *      'User\\' => [
     *           'firstName' => 'John',
     *      ]
     * ]
     * @var array
     */
    protected $_modulePlaceholders = [];

    /**
     * @var Qs_Lock_RoleObj
     */
    protected $_lockObj;

    /** @var array */
    protected $_gtmValues = [];

    protected $_isPagePreviewMode = false;

    public function __construct($options = [])
    {
        $this->setBase(Qs_Constant::get('BASE_URL') . '/');
        $this->setOptions($options);
        Qs_Options::setConstructorOptions($this);
        $this->_init();
    }

    protected function _init()
    {
        /** @var $viewRenderer Zend_Controller_Action_Helper_ViewRenderer */
        $viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
        if (null == $viewRenderer->view) {
            $viewRenderer->setView(Qs_View::getInstance());
        }
        $this->_initMessages();
        if (!$this->isPagePreviewMode() && $this->_hasAuthentication) {
            $this->authenticate();
        }
        return $this;
    }

    protected function _initMessages()
    {
        if (Qs_Request::isXmlHttpRequest()) {
            // Don't remove messages in Ajax requests
            return $this;
        }
        $session = new Qs_Session_Namespace(Qs_Constant::get('CURRENT_PAGE'));
        if (isset($session->message)) {
            $this->displayMessage($session->message);
            unset($session->message);
        }
        if (isset($session->error)) {
            $this->displayError($session->error);
            unset($session->error);
        }
        if (isset($session->attention)) {
            $this->displayAttention($session->attention);
            unset($session->attention);
        }
        return $this;
    }

    public function hasAnalyticsScripts()
    {
        return $this->_hasAnalyticsScripts;
    }

    public function setHasAnalyticsScripts($value = true)
    {
        $this->_hasAnalyticsScripts = (bool) $value;
        return $this;
    }

    public function setAnalyticsType($type)
    {
        if (!in_array($type, [self::ANALYTICS_TYPE_GOOGLE_ANALYTICS, self::ANALYTICS_TYPE_GOOGLE_TAG_MANAGER])) {
            throw new Qs_Exception('Undefined analytics type');
        }
        $this->_analyticsType = $type;
        return $this;
    }

    public function getAnalyticsType()
    {
        if (null === $this->_analyticsType) {
            $map = [
                'gtmId'         => self::ANALYTICS_TYPE_GOOGLE_TAG_MANAGER,
                'analyticsCode' => self::ANALYTICS_TYPE_GOOGLE_ANALYTICS,
            ];
            // use cached 'false' value for further method calls in case both codes are empty
            $this->_analyticsType = false;
            foreach ($map as $field => $type) {
                $code = App_Settings_Obj::get($field);
                $code = trim($code);
                if (!empty($code)) {
                    $this->_analyticsType = $type;
                    break;
                }
            }
        }
        return $this->_analyticsType;
    }

    public function isGtmEnabled()
    {
        return constant('SITE_LIVE') && $this->getAnalyticsType() == self::ANALYTICS_TYPE_GOOGLE_TAG_MANAGER
            && App_Settings_Obj::get('gtmId');
    }

    public function addGtmValues(array $values)
    {
        $this->_gtmValues = Qs_Array::mergeRecursive($this->_gtmValues, $values);
        return $this;
    }

    public function setGtmValue($name, $value)
    {
        $this->_gtmValues[$name] = $value;
        return $this;
    }

    public function getGtmValues()
    {
        return $this->_gtmValues;
    }

    public function setAuthentication($value)
    {
        $this->_hasAuthentication = (bool) $value;
        return $this;
    }

    public function getAuthentication()
    {
        return (bool) $this->_hasAuthentication;
    }

    public function setOptions($options)
    {
        if (isset($options['options'])) {
            unset($options['options']);
        }
        foreach ($options as $key => $value) {
            $this->setOption($key, $value);
        }
        return $this;
    }

    public function getOptions()
    {
        return $this->_options;
    }

    public function setOption($name, $value)
    {
        $method = 'set' . ucfirst($name);
        if (method_exists($this, $method)) {
            $this->$method($value);
        } else {
            $this->_options[$name] = $value;
        }
        return $this;
    }

    public function getOption($name)
    {
        if (array_key_exists($name, $this->_options)) {
            return $this->_options[$name];
        }
        return false;
    }

    public function setDescription($description)
    {
        $this->_content['head']['description'] = $description;
        return $this;
    }

    public function appendHeader($append)
    {
        $this->setHeader($this->getHeader() . $append);
        return $this;
    }

    public function setHeader($header)
    {
        $this->assign('header', $header);
        return $this;
    }

    public function getHeader()
    {
        return $this->getTemplateVariable('header');
    }

    public function getTemplateVariables()
    {
        return $this->_content;
    }

    public function getTemplateVariable($name)
    {
        if (array_key_exists($name, $this->_content)) {
            return $this->_content[$name];
        }
        return null;
    }

    public function setKeywords($keywords)
    {
        $this->_content['head']['keywords'] = $keywords;
        return $this;
    }

    public function getView()
    {
        if (null === $this->_view) {
            $this->_view = Qs_View::getInstance();
        }
        return $this->_view;
    }

    public function clearStylesheets()
    {
        $this->_content['head']['stylesheet'] = [];
        return $this;
    }

    public function clearInlineScripts()
    {
        $this->_content['head']['inlineScript'] = [];
        return $this;
    }

    public function clearInitFunctions()
    {
        $this->_content['head']['initFunctions'] = [];
        return $this;
    }

    public function clearScripts()
    {
        $this->_content['head']['script'] = [];
        return $this;
    }

    public function setStylesheets(array $list)
    {
        $this->clearStylesheets();
        $this->addStylesheets($list);
        return $this;
    }

    public function addStylesheets(array $list)
    {
        foreach ($list as $options) {
            if (is_array($options)) {
                call_user_func_array([$this, 'addStylesheet'], $options);
            } else {
                $this->addStylesheet($options);
            }
        }
        return $this;
    }

    public function addStylesheet($href, $_attribs = [], $name = null)
    {
        $attribs = [
            'href'  => $href,
            'media' => 'all',
            'type'  => 'text/css',
            'rel'   => 'stylesheet',
        ];
        if (null === $name) {
            if (strncmp($href, 'css/', 4) == 0) {
                $name = substr($href, 4);
                $name = str_replace('.css', '', $name);
            } else {
                $name = $href;
            }
        }
        if (isset($this->_content['head']['stylesheet'][$name])) {
            return $this;
        }
        $this->_content['head']['stylesheet'][$name] = array_merge($attribs, $_attribs);
        return $this;
    }

    public function setScripts(array $list)
    {
        $this->clearScripts();
        $this->addScripts($list);
        return $this;
    }

    public function addScripts(array $list)
    {
        foreach ($list as $options) {
            if (is_array($options)) {
                call_user_func_array([$this, 'addScript'], $options);
            } else {
                $this->addScript($options);
            }
        }
        return $this;
    }

    public function addScript($src, $_attribs = [], $name = null)
    {
        $attribs = [
            'src'  => $src, // Tag <base> is not correctly works in IE8
            'type' => 'text/javascript',
            //'language' => 'JavaScript',
        ];
        if (null === $name) {
            if (strncmp($src, 'js/', 3) == 0) {
                $name = substr($src, 3, -3);
            } else {
                $name = $src;
            }
        }
        if (isset($this->_content['head']['script'][$name])) {
            return $this;
        }
        $script = array_merge($attribs, $_attribs);
        if ($src === 'js/jquery-ui.js' && array_key_exists('jquery', $this->_content['head']['script'])) {
            /**
             * Put jquery-ui.js after jquery.js to avoid conflicts with bootstrap
             * https://stackoverflow.com/questions/17458224/
             */
            Qs_Array::mergeAssocAfter($this->_content['head']['script'], [$name => $script], 'jquery');
        } else {
            $this->_content['head']['script'][$name] = $script;
        }
        return $this;
    }

    public function hasScript($src, $name = null)
    {
        if (null === $name) {
            if (strncmp($src, 'js/', 3) == 0) {
                $name = substr($src, 3, -3);
            } else {
                $name = $src;
            }
        }
        if (isset($this->_content['head']['script'][$name])) {
            return true;
        }
        return false;
    }

    public function addInlineScript($name, $body, $_attribs = [])
    {
        $attribs = [
            'type'          => 'text/javascript',
            'beforeScripts' => false,
        ];
        $attribs = array_merge($attribs, $_attribs);
        $beforeScripts = (int) $attribs['beforeScripts'];
        unset($attribs['beforeScripts']);
        $this->_content['head']['inlineScript'][$beforeScripts][$name] = [
            'attribs' => $attribs,
            'body'    => $body,
        ];
        return $this;
    }

    protected function _getHeadPart($part)
    {
        if (array_key_exists($part, $this->_content['head'])) {
            return $this->_content['head'][$part];
        }
        return null;
    }

    protected function _setHeadPart($part, $attribs)
    {
        $this->_content['head'][$part] = $attribs;
        return $this;
    }

    public function appendTitle($append)
    {
        $this->_titleParts[] = $append;
        return $this;
    }

    public function prependTitle($prepend)
    {
        array_unshift($this->_titleParts, $prepend);
        return $this;
    }

    public function setTitle($title)
    {
        $this->_titleParts = [$title];
        return $this;
    }

    /**
     * @param string $titleFormat
     * @return $this
     */
    public function setTitleFormat($titleFormat)
    {
        $this->_titleFormat = $titleFormat;
        return $this;
    }

    /**
     * @return string
     */
    public function getTitleFormat()
    {
        return $this->_titleFormat;
    }

    /**
     * @param array $titleParts
     * @return $this
     */
    public function setTitleParts($titleParts)
    {
        $this->_titleParts = $titleParts;
        return $this;
    }

    /**
     * @return array
     */
    public function getTitleParts()
    {
        return $this->_titleParts;
    }

    /**
     * @param string $titleSeparator
     * @return $this
     */
    public function setTitleSeparator($titleSeparator)
    {
        $this->_titleSeparator = $titleSeparator;
        return $this;
    }

    /**
     * @return string
     */
    public function getTitleSeparator()
    {
        return $this->_titleSeparator;
    }

    /**
     * @param mixed $siteName
     * @return $this
     */
    public function setSiteName($siteName)
    {
        $this->_siteName = $siteName;
        return $this;
    }

    /**
     * @return mixed
     */
    public function getSiteName()
    {
        if (null === $this->_siteName) {
            $this->setSiteName(constant('SITE_NAME'));
        }
        return $this->_siteName;
    }

    /**
     * @param mixed $pageNumber
     * @return $this
     */
    public function setPageNumber($pageNumber)
    {
        $this->_pageNumber = (int) $pageNumber;
        return $this;
    }

    /**
     * @return mixed
     */
    public function getPageNumber()
    {
        return $this->_pageNumber;
    }

    public function getTitleSuffix()
    {
        if (null === $this->_titleSuffix) {
            $this->_titleSuffix = App_Settings_Obj::get('titleSuffix');
        }
        return $this->_titleSuffix;
    }

    public function setTitleSuffix($titleSuffix)
    {
        $this->_titleSuffix = $titleSuffix;
        return $this;
    }

    public function getTitle()
    {
        return Qs_String::fill(
            $this->getTitleFormat(),
            [
                'title'       => implode($this->getTitleSeparator(), $this->getTitleParts()),
                'separator'   => $this->getTitleSeparator(),
                'pageNumber'  => $this->getPageNumber() > 1 ? $this->getPageNumber() : null,
                'titleSuffix' => $this->getTitleSuffix(),
            ]
        );
    }

    public function setBase($base)
    {
        return $this->_setHeadPart('base', $base);
    }

    public function getTemplateDirectory()
    {
        if (null == $this->_templateRootPath) {
            $this->setTemplateRootPath(Qs_Constant::get('BASE_PATH') . '/tpl');
        }
        return $this->_templateRootPath;
    }

    public function setTemplateRootPath($directory)
    {
        $this->_templateRootPath = strval($directory);
        if (is_object($this->_smarty)) {
            $this->_smarty->template_dir = $this->_templateRootPath;
        }
        return $this;
    }

    public function getLayoutTemplate()
    {
        if (null === $this->_layoutTemplate) {
            $this->setLayoutTemplate('index.tpl');
        }
        return $this->_layoutTemplate;
    }

    public function setLayoutTemplate($_template)
    {
        if ('.' === dirname($_template)) {
            $template = $this->getTemplate($_template);
        } else {
            $template = $_template;
        }
        if (empty($template)) {
            $message = 'Invalid layout template "' . $_template . '" not found in paths: "'
                . implode('", "', $this->getTemplatePath()) . '".';
            throw new Qs_Doc_Exception($message);
        }
        $this->_layoutTemplate = $template;
        return $this;
    }

    public function getBodyTemplate()
    {
        if (null === $this->_getHeadPart('bodyTemplate')) {
            $this->_setHeadPart('bodyTemplate', $this->getTemplate('Body/default.tpl'));
        }
        return $this->_getHeadPart('bodyTemplate');
    }

    public function setBodyTemplate($_template)
    {
        if ('.' === dirname($_template)) {
            $template = $this->getTemplate('Body/' . $_template);
        } else {
            $template = $_template;
        }
        if (empty($template)) {
            Qs_Debug::log('Body template "' . $_template . '" not found in paths: "'
                . implode('", "', $this->getTemplatePath()) . '".');
            if (false === ($template = $this->getTemplate('Body/default.tpl'))) {
                $message = 'Body template "' . $_template . '" not found in paths: "'
                    . implode('", "', $this->getTemplatePath()) . '".';
                throw new Qs_Doc_Exception($message);
            }
        }
        $this->_setHeadPart('bodyTemplate', $template);
        return $this;
    }

    /**
     * @param string $var
     * @param mixed $value
     * @return Qs_Doc
     */
    public function assign($var, $value = false)
    {
        $this->_content[$var] = $value;
        return $this;
    }

    public function registerOutputFilter($filter)
    {
        $this->unregisterOutputFilter($filter);
        $this->_outFilters[] = $filter;
        return $this;
    }

    public function unregisterOutputFilter($filter)
    {
        $key = array_search($filter, $this->_outFilters);
        if (false !== $key) {
            unset($this->_outFilters[$key]);
        }
        return $this;
    }

    public function setOptimized($flag = true)
    {
        $this->_optimized = (bool) $flag;
        return $this;
    }

    public function getOptimized()
    {
        return $this->_optimized;
    }

    protected function _optimize()
    {
        if ($this->_optimized || !Qs_Constant::get('OPTIMIZE_RESOURCES')) {
            return $this;
        }
        if (false !== ($mergedStylesheets = Qs_Packer::getMergedStylesheets($this->_content['head']['stylesheet']))) {
            $this->setStylesheets($mergedStylesheets);
        }
        if (false !== ($mergedScripts = Qs_Packer::getMergedScripts($this->_content['head']['script']))) {
            $this->setScripts($mergedScripts);
        }
        $this->_optimized = true;
        return $this;
    }

    public function fetch($template = null)
    {
        $this->_optimize();

        $this->getSmarty()->assign('AUTH_INFO', $this->getAuthIdentity());

        $this->getSmarty()->assign('scriptDefines', $this->_scriptDefines);
        $this->addInlineScript(
            'isMobile',
            'qs.constant("IS_TOUCHSCREEN", ' . ((Qs_Device::isTouchscreen()) ? 'true' : 'false') . ');'
        );

        if (Qs_Navigation::isEnabled() && false != ($nav = Qs_Navigation::get())) {
            $this->getSmarty()->assign('NAVIGATION', $nav);
        }

        foreach ($this->_resourcesIgnoredAttribs as $attribute) {
            foreach (['stylesheet', 'script'] as $resourceType) {
                foreach ($this->_content['head'][$resourceType] as &$resource) {
                    if (array_key_exists($attribute, $resource)) {
                        unset($resource[$attribute]);
                    }
                }
            }
        }

        $html = $this->fetchTemplate($template);

        foreach ($this->_outFilters as $filter) {
            $html = call_user_func_array($filter, [$html, $this]);
        }
        return $html;
    }

    public function fetchTemplate($template = null)
    {
        $this->getSmarty()->assign('view', Qs_View::getInstance());

        if (is_array($this->_templateDefines) && !empty($this->_templateDefines)) {
            foreach ($this->_templateDefines as $v) {
                $this->assign($v, Qs_Constant::get($v));
            }
        }
        $this->getSmarty()->assign($this->getTemplateVariables());
        $this->getSmarty()->assign('DOC', $this);

        $this->getSmarty()->assign('IS_TOUCHSCREEN', Qs_Device::isTouchscreen());

        /** @var $debug Qs_Debug */
        $debug = Zend_Registry::get('debug');
        $debug->setErrorReporting($debug->getErrorReporting() ^ E_NOTICE);

        $html = $this->getSmarty()->fetch((null === $template) ? $this->getLayoutTemplate() : $template);

        $debug->restoreErrorReporting();
        return $html;
    }

    public function fetchItem(array $item)
    {
        $this->getSmarty()->assign('item', new Qs_Doc_Item($item));
        return $this->fetchTemplate($item['tpl']);
    }

    protected function _beforeDisplay()
    {
        $this->_initGtmValues();
        $this->_initFooter();
        return $this;
    }

    protected function _initGtmValues()
    {
        if ($this->isGtmEnabled()) {
            $values = (array) $this->_gtmValues;
            array_walk_recursive($values, function (&$item) {
                $item = (string) $item;
            });
            $values = json_encode($values, JSON_PRETTY_PRINT);
            $this->assign('GTM_VALUES', $values);
        }
        return $this;
    }

    protected function _initFooter()
    {
        $data = (array) $this->_getFooterPlaceholders();
        $this->assign('FOOTER', Qs_String::fill(App_Settings_Obj::get('footer'), $data));
        return $this;
    }

    protected function _getFooterPlaceholders()
    {
        return [
            'currentYear' => date('Y'),
            'widgets'     => '',
        ];
    }

    public function sendHeaders()
    {
        header('Content-Type: ' . Qs_Constant::get('CONTENT_TYPE'));
        return $this;
    }

    public function display404($options = [])
    {
        $notFound = new App_NotFound_View($options);
        $notFound->setDoc($this);
        $notFound->exec();
        return $this;
    }

    public function display()
    {
        $this->_beforeDisplay();
        $this->sendHeaders();
        echo $this->fetch();
        return $this;
    }

    public function __toString()
    {
        $this->_beforeDisplay();
        return $this->fetch();
    }

    protected function _displayMessageBox(array $messages, $type)
    {
        $template = $this->getTemplate($type . '.tpl');
        foreach ($messages as $message) {
            $this->addItem(['tpl' => $template, 'message' => $message]);
        }
        return $this;
    }

    public function renderError($message)
    {
        return $this->fetchItem(['tpl' => $this->getTemplate('error.tpl'), 'message' => $message]);
    }

    public function renderMessage($message)
    {
        return $this->fetchItem(['tpl' => $this->getTemplate('message.tpl'), 'message' => $message]);
    }

    public function displayMessage($messages)
    {
        $messages = (array) $messages;
        $this->_displayMessageBox($messages, static::MESSAGE_BOX_MESSAGE);
        return $this;
    }

    public function displayError($errors)
    {
        $errors = (array) $errors;
        $this->_displayMessageBox($errors, static::MESSAGE_BOX_ERROR);
        return $this;
    }

    public function displayAttention($attentions)
    {
        $attentions = (array) $attentions;
        $this->_displayMessageBox($attentions, static::MESSAGE_BOX_ATTENTION);
        return $this;
    }

    public function hasAuth()
    {
        $file = BASE_PATH . '/' . str_replace(['_', '\\'], '/', $this->_authClassName) . '.php';
        return (null !== $this->_auth || (null !== $this->_authClassName && file_exists($file)));
    }

    public function getAuth()
    {
        if (null === $this->_auth) {
            if (null === $this->_authClassName) {
                throw new Qs_Doc_Exception('Auth is undefined');
            } else {
                $this->_auth = call_user_func($this->_authClassName . '::getInstance');
            }
        }
        return $this->_auth;
    }

    public function setAuth($auth)
    {
        if (!($auth instanceof Qs_Auth)) {
            throw new Qs_Doc_Exception('Auth is not instance of Qs_Auth');
        }
        $this->_auth = $auth;
        return $this;
    }

    public function getAuthAdapter()
    {
        if (null === $this->_authAdapter) {
            if (null === $this->_authAdapterClassName) {
                if (null == $this->_auth) {
                    if (null === $this->_authClassName) {
                        throw new Qs_Doc_Exception('AuthAdapter is undefined');
                    }
                    $this->_authAdapterClassName = $this->_authClassName . 'Adapter';
                } else {
                    $this->_authAdapterClassName = get_class($this->_auth) . 'Adapter';
                }
            }
            $this->_authAdapter = new $this->_authAdapterClassName();
        }
        return $this->_authAdapter;
    }

    public function setAuthAdapter($authAdaptrer)
    {
        if (!($authAdaptrer instanceof Zend_Auth_Adapter_Interface)) {
            throw new Qs_Doc_Exception('AuthAdapter is not instance of Zend_Auth_Adapter_Interface');
        }
        $this->_authAdapter = $authAdaptrer;
        return $this;
    }

    public function authenticate()
    {
        /** @var $result Zend_Auth_Result */
        $result = null;

        if ($this->getAuth()->hasIdentity()) {
            $data = $this->getAuth()->getIdentity();
            $this->getAuthAdapter()->setIdentity($data);
            $result = $this->getAuth()->authenticate($this->getAuthAdapter());
            if ($result->isValid()) {
                return true;
            } else {
                $this->getAuth()->clearIdentity();
            }
        }
        if (Qs_Request::isXmlHttpRequest()) {
            $this->_processAjaxFailedAuth();
        } else {
            $this->getAuth()->setBackUrl(Qs_Request::getUrl());
            if ($result) {
                $session = new Zend_Session_Namespace($this->getAuth()->getLoginAlias());
                $session->{self::MESSAGE_BOX_ERROR} = $result->getMessages();
                $session->setExpirationHops(1, self::MESSAGE_BOX_ERROR);
            }
            Qs_Http::redirect($this->getAuth()->getLoginUrl());
        }
        return $this;
    }

    protected function _processAjaxFailedAuth()
    {
        $this->ajaxResponse([
            'isValid'        => true,
            'sessionExpired' => true,
            'loginUrl'       => $this->getAuth()->getLoginUrl() . '?' . Qs_Doc::POPUP,
        ]);
        return $this;
    }

    public function ajaxResponse($response = [])
    {
        header('Cache-Control: no-store, no-cache, must-revalidate, private');
        header('Pragma: no-cache');
        header('Content-Type: application/x-javascript; charset=utf-8');
        die(json_encode($response));
    }

    public function getAuthData($field = false, $default = null)
    {
        if ($this->hasAuth()) {
            return $this->getAuth()->getData($field, $default);
        }
        return $default;
    }

    public function getAuthIdentity()
    {
        if ($this->hasAuth()) {
            $identity = $this->getAuth()->getIdentity();
            if (!empty($identity) && array_key_exists('autologinCode', $identity)) {
                if (count($identity) == 1) { // has only 'autologinCode'
                    $this->authenticate();
                    $identity = $this->getAuth()->getIdentity();
                }
            }
            return $identity;
        }
        return false;
    }

    public function addItem($item, $groupName = null)
    {
        if (null === $groupName) {
            $groupName = $this->getGroupName();
        }
        if ($item instanceof Qs_Doc_Item) {
        	$docItem = $item;
        } else {
	        $docItem = new Qs_Doc_Item($item);
        }
        $this->addItemResources($docItem);
        $this->_content[$groupName][] = $docItem;
        return $this;
    }

    public function getGroupName()
    {
        if (null === $this->_groupName) {
            return $this->_defaultGroupName;
        }
        return $this->_groupName;
    }

    public function unsetGroupName()
    {
        $this->_groupName = null;
        return $this;
    }

    public function setGroupName($groupName)
    {
        $this->_groupName = $groupName;
        return $this;
    }

    public function addReadyFunction($name, $params = [])
    {
        $this->_content['head']['readyFunctions'][] = [
            'name'   => $name,
            'params' => $params,
        ];
        return $this;
    }

    public function addReadyObject($name, $params = [], $assign = null)
    {
        $this->_content['head']['readyFunctions'][] = [
            'name'   => $name,
            'params' => $params,
            'assign' => $assign,
            'new'    => true,
        ];
        return $this;
    }

    public function addInitFunction($name, $params = [])
    {
        $this->_content['head']['initFunctions'][] = [
            'name'   => $name,
            'params' => $params,
        ];
        return $this;
    }

    public function addInitObject($name, $params = [], $assign = null)
    {
        $this->_content['head']['initFunctions'][] = [
            'name'   => $name,
            'params' => $params,
            'assign' => $assign,
            'new'    => true,
        ];
        return $this;
    }

    public function getTemplate($template, $logNotFound = true)
    {
        return Qs_SiteMap::getTemplate($template, $this->getTemplatePath(), $logNotFound);
    }

    public function getTemplatePath()
    {
        if (null === $this->_templatePath) {
            $class = get_class($this);
            $this->_templatePath = substr($class, 0, strrpos($class, '_'));
            if (0 === strpos($this->_templatePath, 'App_')) {
                $this->_templatePath = substr($this->_templatePath, 4);
            }
        }
        return $this->_templatePath;
    }

    /**
     * @return Smarty
     */
    public function getSmarty()
    {
        if (null === $this->_smarty) {
            if (!class_exists('Smarty')) {
                require_once 'lib/Smarty/Smarty/Smarty.class.php';
            }
            $this->_smarty = new Smarty();
            $this->_smarty->compile_check = true;
            $this->_smarty->debugging = false;
            $this->_smarty->template_dir = $this->getTemplateDirectory();
            $this->_smarty->cache_lifetime = 40;
            $this->_smarty->force_compile = false;
            $this->_smarty->php_handling = SMARTY_PHP_PASSTHRU;
            $this->_smarty->compile_dir = Qs_Constant::get('BASE_PATH') . '/tmp/tpl_c';
            $this->_smarty->left_delimiter = '{';
            $this->_smarty->right_delimiter = '}';
            foreach ($this->_smartyPlugins['block'] as $name => $block) {
                $this->_smarty->_plugins['block'][$name] = $block;
            }
            foreach ($this->_smartyPluginPaths as $dir) {
                $this->_smarty->plugins_dir[] = Qs_Constant::get('BASE_PATH') . '/' . $dir;
            }
        }
        return $this->_smarty;
    }

    protected function _createItemObj($item)
    {
        $separator = (false !== strpos($item['type'], '\\')) ? '\\' : '_';
        $class = Qs_SiteMap::getItemTypeClass($item['type'], 'View');
        $file = BASE_PATH . '/' . str_replace($separator, '/', $class) . '.php';
        if (!file_exists($file)) {
            Qs_Debug::log('Cms item "' . $item['type'] . '" not found');
            return false;
        }
        $item['doc'] = $this;
        if (array_key_exists('id', $item)) {
            $item['idItem'] = $item['id'];
        }

        return new $class($item);
    }

    public function renderPageItems($items)
    {
        $itemObj = [];
        $_pageItems = $items;
        $indexes = array_keys($items);
        while (false !== ($index = current($indexes)) && array_key_exists($index, $items)) {
            next($indexes);
            $item = $items[$index];
            next($items);
            /** @var $obj Qs_ViewController */
            if (false !== ($obj = $this->_createItemObj($item))) {
                $itemObj[$index] = $obj;
            } else {
                continue;
            }
            if (method_exists($itemObj[$index], 'preDispatch')) {
                $itemObj[$index]->preDispatch($items);
            }
        }

        foreach ($items as $index => $item) {
            if (array_key_exists($index, $itemObj)) {
                $obj = $itemObj[$index];
            } else {
                if (false === ($obj = $this->_createItemObj($item))) {
                    continue;
                }
            }
            if (isset($items[$index]['groupName'])) {
                $this->setGroupName($items[$index]['groupName']);
            } else {
                $this->unsetGroupName();
            }
            $time = microtime(true);
            $obj->exec();
            unset($itemObj[$index]);
            if (Qs_Constant::get('DEBUG')) {
                $_pageItems[$index]['executed'] = true;
                $_pageItems[$index]['duration'] = round((microtime(true) - $time) * 1000);
            }
        }

        if (Qs_Constant::get('DEBUG')) {
            Zend_Registry::set('_pageItems', $_pageItems);
        }

        return $this;
    }

    public function registerSmartyBlock($block, $block_impl, $cacheable = true, $cache_attrs = null)
    {
        $this->_smartyPlugins['block'][$block] = [$block_impl, null, null, false, $cacheable, $cache_attrs];
        return $this;
    }

    public function removeItem($index, $groupName = null)
    {
        if (null === $groupName) {
            $groupName = $this->getGroupName();
        }
        if (array_key_exists($index, $this->_content[$groupName])) {
            unset($this->_content[$groupName][$index]);
        }
        return $this;
    }

    public function setBodyAttribs($attribs)
    {
        $this->_content['bodyAttribs'] = $attribs;
    }

    public function setBodyAttrib($name, $value)
    {
        $this->_content['bodyAttribs'][$name] = $value;
    }

    public function getBodyAttribs()
    {
        return $this->_content['bodyAttribs'];
    }

    public function getMenu()
    {
        return $this->_content['menu'];
    }

    public function getCtrlMenu()
    {
        if (null === $this->_content['ctrlMenu']) {
            $filter = ['showInCtrlMenu' => 'y', 'requireSu' => 'n'];
            if ($this->hasAuth() && $this->getAuth()->getSuMode()) {
                unset($filter['requireSu']);
            }
            $ctrlMenu = Qs_SiteMap::find($filter);
            $this->_prepareCtrlMenu($ctrlMenu, $filter);
            $this->_content['ctrlMenu'] = $ctrlMenu;
        }
        return $this->_content['ctrlMenu'];
    }

    protected function _prepareCtrlMenu(array &$menu, array $filter)
    {
        if (!empty($menu)) {
            foreach ($menu as $key => &$item) {
                if (!empty($filter['requireSu']) && $filter['requireSu'] != $item['requireSu']) {
                    unset($menu[$key]);
                } else if (!empty($item['sub'])) {
                    $this->_prepareCtrlMenu($item['sub'], $filter);
                }
            }
            $menu = array_merge($menu);
        }
        return $this;
    }

    public function getBodyAttrib($name)
    {
        if (array_key_exists($name, $this->_content['bodyAttribs'])) {
            return $this->_content['bodyAttribs'][$name];
        }
        return null;
    }

    public function renderScripts($excludedAttribs = null)
    {
        $html = '';
        foreach ($this->_content['head']['script'] as $attribs) {
            if (!empty($excludedAttribs)) {
                if (is_array($excludedAttribs)) {
                    foreach ($excludedAttribs as $excluded) {
                        unset($attribs[$excluded]);
                    }
                } else {
                    unset($attribs[$excludedAttribs]);
                }
            }
            if (0 === strpos($attribs['src'], 'js/')) {
                if (Qs_Constant::get('SITE_REVISION')) {
                    $attribs['src'] = BASE_URL . '/js-' . Qs_Constant::get('SITE_REVISION') . '/' . substr($attribs['src'], 3);
                } else {
                    $attribs['src'] = BASE_URL . '/' . $attribs['src'];
                }
            }
            $html .= '<script ';
            foreach ($attribs as $name => $value) {
                $html .= ' ' . $name . ' = "' . htmlspecialchars($value, ENT_COMPAT, 'UTF-8') . '"';
            }
            $html .= '></script>' . "\n    ";
        }
        return $html;
    }

    public function renderStylesheets()
    {
        $html = '';
        foreach ($this->_content['head']['stylesheet'] as $attribs) {
            if (Qs_Constant::get('SITE_REVISION')) {
                if (0 === strpos($attribs['href'], 'css/')) {
                    $attribs['href'] = 'css-' . Qs_Constant::get('SITE_REVISION') . '/' . substr($attribs['href'], 4);
                }
            }
            $html .= '<link ';
            foreach ($attribs as $name => $value) {
                $html .= ' ' . $name . ' = "' . htmlspecialchars($value, ENT_COMPAT, 'UTF-8') . '"';
            }
            $html .= '/>' . "\n    ";
        }
        return $html;
    }

    public function renderInlineScripts($indents = null, $beforeScripts = false)
    {
        $html = '';
        $scriptsHtml = [];
        $indents = (!$indents) ? 1 : $indents;
        $indent = str_repeat(' ', $indents * 4);
        $beforeScripts = (int) $beforeScripts;

        if (is_array($this->_content['head']['inlineScript'][$beforeScripts])) {
            foreach ($this->_content['head']['inlineScript'][$beforeScripts] as $name => $script) {
                $attribs = '';
                foreach ($script['attribs'] as $attribute => $attributeValue) {
                    $attribs .= $attribute . ' = "' . htmlspecialchars($attributeValue, ENT_COMPAT, 'UTF-8') . '" ';
                }
                $attribs = trim($attribs);
                $body = PHP_EOL . '/* Inline Script: ' . $name . ' */' . PHP_EOL . $script['body'];
                $scriptsHtml[$attribs] .= str_replace(PHP_EOL, PHP_EOL . $indent . $indent, $body) . PHP_EOL;
            }

            foreach ($scriptsHtml as $scriptAttribs => $scriptHtml) {
                $html = '<script ' . $scriptAttribs . '>'
                    . PHP_EOL . $indent . $this->_scriptStart
                    . PHP_EOL . $scriptHtml
                    . PHP_EOL . $indent . $this->_scriptEnd
                    . PHP_EOL . $indent . '</script>';
            }
        }

        return $html;
    }

    protected function _renderInitFunctions(array $functionsSpec = null)
    {
        $functionsSpec = (null === $functionsSpec)
            ? $this->_content['head']['initFunctions']
            : $functionsSpec;
        $html = '';
        foreach ($functionsSpec as $options) {
            $row = $options['name'];
            if (!empty($options['params'])) {
                $params = [];
                foreach ($options['params'] as $param) {
                    $json = Zend_Json::encode($param, false, ['enableJsonExprFinder' => true]);
                    if (constant('DEBUG')) {
                        $json = Zend_Json::prettyPrint($json, ['indent' => '    ']);
                        $json = str_replace("\n", "\n" . str_repeat('    ', 2), $json);
                    }
                    $params[] = $json;
                }
                $row .= '(' . implode(', ', $params) . ');';
            } else {
                $row .= '();';
            }
            if (isset($options['new']) && $options['new']) {
                $row = 'new ' . $row;
            }
            if (!empty($options['assign'])) {
                $row = $options['assign'] . ' = ' . $row;
            }
            $html .= str_repeat('    ', 2) . $row . "\n\n";
        }
        return $html;
    }

    public function renderInitFunctions()
    {
        return $this->_renderInitFunctions($this->_content['head']['initFunctions']);
    }

    public function renderReadyFunctions()
    {
        return $this->_renderInitFunctions($this->_content['head']['readyFunctions']);
    }

    function setTemplatePath($path)
    {
        $this->_templatePath = $path;
        return $this;
    }

    public function getUserRole()
    {
        $role = null;
        if ($this->hasAuth()) {
            $role = $this->getAuth()->getRole();
        }
        return $role;
    }

    public function getUserId()
    {
        $id = null;
        if ($this->hasAuth()) {
            $id = $this->getAuth()->getData('id');
        }
        return $id;
    }

    public function getLockObj()
    {
        if (null === $this->_lockObj) {
            $this->_lockObj = new Qs_Lock_RoleObj($this->getUserRole(), $this->getUserId(), Zend_Session::getId());
        }
        return $this->_lockObj;
    }

    public function setHtmlAttribs(array $attribs)
    {
        if (!is_array($attribs) || !Qs_Array::isAssoc($attribs)) {
            throw new Qs_Exception('Attribs is not associative array');
        }
        $this->_content['htmlAttribs'] = $attribs;
        return $this;
    }

    public function setHtmlAttrib($name, $value)
    {
        if (!is_string($name) || '' == $name) {
            throw new Qs_Exception('Wrong attribute name');
        }
        if (!is_string($value) || '' == $value) {
            throw new Qs_Exception('Wrong attribute value');
        }
        $this->_content['htmlAttribs'][$name] = $value;
        return $this;
    }

    public function getHtmlAttrib($name)
    {
        return isset($this->_content['htmlAttribs'][$name]) ? $this->_content['htmlAttribs'][$name] : null;
    }

    public function getHtmlAttribs()
    {
        return $this->_content['htmlAttribs'];
    }

    public function addItemResources(Qs_Doc_Item $item)
    {
        $resources = ['script', 'inlineScript', 'stylesheet', 'readyFunction', 'initFunction', 'initObject'];
        foreach ($resources as $name) {
            if (isset($item->{$name}) && is_array($item->{$name})) {
                foreach ($item->{$name} as $params) {
                    call_user_func_array([$this, 'add' . ucfirst($name)], (array) $params);
                }
            }
        }
        return $this;
    }

    public function addResources(array $resources)
    {
        foreach ($resources as $type => $list) {
            $method = 'add' . $type;
            if (method_exists($this, $method)) {
                foreach ($list as $arguments) {
                    call_user_func_array([$this, $method], $arguments);
                }
            } else {
                trigger_error('Undefined resource type');
            }
        }
        return $this;
    }

    public function getResources()
    {
        $script = '';

        $head = $this->getTemplateVariable('head');

        foreach ($head['inlineScript'] as $inlineScript) {
            $script .= "{$inlineScript}\n";
        }

        $script .= "\n" . $this->renderReadyFunctions();
        $script .= "\n" . $this->renderInitFunctions();

        return $script;
    }

    public function sendNoindexHeader()
    {
        header('X-Robots-Tag: noindex, nofollow');
        return $this;
    }

    public function setPagePreviewMode($value = true)
    {
        $this->_isPagePreviewMode = $value;
        return $this;
    }

    public function isPagePreviewMode()
    {
        return $this->_isPagePreviewMode;
    }

    public function getWidgets($placement = null, $default = null)
    {
        return Qs_Array::get($this->_widgets, $placement, $default);
    }

    public function setWidgets(array $widgets)
    {
        $this->_widgets = $widgets;
        return $this;
    }

    public function renderWidgets($placement)
    {
        return $this->getWidgets($placement, '');
    }

    public function getModulePlaceholders($module = null)
    {
        return Qs_Array::get($this->_modulePlaceholders, $module, []);
    }

    public function setModulePlaceholders($module, $placeholders)
    {
        $this->_modulePlaceholders[$module] = $placeholders;
        return $this;
    }

    public function hasModulePlaceholders($module)
    {
        return array_key_exists($module, $this->_modulePlaceholders);
    }

    public function renderMeta()
    {
        $html = '';
        foreach ($this->_content['head']['meta'] as $attribs) {
            $html .= Qs\Html::renderTag('meta', $attribs) . '    ';
        }
        return $html;
    }

    public function addMeta($attribs = [])
    {
        $this->_content['head']['meta'][] = $attribs;
        return $this;
    }
}